1. Chop the salted duck and wash it. Soak it in water for a while, then drain it;
2. Wash ginger, garlic, cinnamon, Chinese prickly ash and dried chilli and cut them well for use;
3. Peel and clean the lettuce and cut it into pieces;
4. Put the salted duck into the pressure cooker;
5. Add the prepared ingredients and proper amount of water;
6. Cover the pot and high pressure valve and press for 13 minutes;
7. When the pressure cooker is cooled, open the lid and add the cut lettuce;
8. Cook until the lettuce is familiar, and then start the pot. The delicious salty duck is ready.